Thursday, September 16

Science

Target student mental well-being
Science

Target student mental well-being

Target student mental well-beingPHOTO: PROFESSIONAL IMAGES PHOTOGRAPHYMental health and well-being are critical to student success in higher education and beyond but rarely get the attention they need. Colleges and universities in the United States have been seeing increases in mental illness and emotional distress among students for decades. Unfortunately, the COVID-19 pandemic and its social and economic consequences are accelerating these trends. Furthermore, renewed focus on systemic racism in many spheres of American life is highlighting the stresses and mental health consequences faced by students from traditionally underrepresented groups and by women who continue to suffer the lingering effects of sexism. The damaging consequences of these problems for students, their institutions,...
MAGNETIC – A Whistler Blackcomb Movie (FULL MOVIE) [4K]
Science

MAGNETIC – A Whistler Blackcomb Movie (FULL MOVIE) [4K]

MAGNETIC - A Whistler Blackcomb Movie (FULL MOVIE) [4K] In the heart of British Columbia’s Coast Mountains, skiers and snowboarders yield to the siren call of challenge and possibility. Introducing MAGNETIC. The world’s first full-length ski and snowboard movie filmed within a single ski area - Whistler Blackcomb. Presented by: Whistler Blackcomb and TELUS Directed & Produced by: Jeff Thomas, Darren Rayner, Graeme Meiklejohn & Origin Design & Communications Starring: Stan Rey, Justin Lamoureux, Jesse Millen, James Heim, Craig McMorris, Eric Hjorleifson, Evan McEachran, Helen Schettini, Ian Morrison, KC Deane, Teal Harle, Robin Van Gyn, Dean Bercivitch, Mikey Ciccarelli, Logan Pehota, Matty Richard, Devun Walsh, Annie Boulanger PY LeBlanc, Mike Douglas, Marcus Cul...
Bringing atoms to a standstill: Miniaturizing laser cooling
Science

Bringing atoms to a standstill: Miniaturizing laser cooling

Bringing atoms to a standstill: Miniaturizing laser coolingIt's cool to be small. Scientists at the National Institute of Standards and Technology (NIST) have miniaturized the optical components required to cool atoms down to a few thousandths of a degree above absolute zero, the first step in employing them on microchips to drive a new generation of super-accurate atomic clocks, enable navigation without GPS, and simulate quantum systems. Cooling atoms is equivalent to slowing them down, which makes them a lot easier to study. At room temperature, atoms whiz through the air at nearly the speed of sound, some 343 meters per second. The rapid, randomly moving atoms have only fleeting interactions with other particles, and their motion can make it difficult to measure transitions between ato...
New starfish-like fossil reveals evolution in action
Science

New starfish-like fossil reveals evolution in action

New starfish-like fossil reveals evolution in actionResearchers from the University of Cambridge have discovered a fossil of the earliest starfish-like animal, which helps us understand the origins of the nimble-armed creature. The prototype starfish, which has features in common with both sea lilies and modern-day starfish, is a missing link for scientists trying to piece together its early evolutionary history. The exceptionally preserved fossil, named Cantabrigiaster fezouataensis, was discovered in Morroco's Anti-Atlas mountain range. Its intricate design -- with feathery arms akin to a lacework -- has been frozen in time for roughly 480 million years. The new species is unusual because it doesn't have many of the key features of its contemporary relatives, lacking roughly 60% of a mod...
A resonant squid-inspired robot unlocks biological propulsive efficiency
Science

A resonant squid-inspired robot unlocks biological propulsive efficiency

A resonant squid-inspired robot unlocks biological propulsive efficiencyAbstractElasticity has been linked to the remarkable propulsive efficiency of pulse-jet animals such as the squid and jellyfish, but reports that quantify the underlying dynamics or demonstrate its application in robotic systems are rare. This work identifies the pulse-jet propulsion mode used by these animals as a coupled mass-spring-mass oscillator, enabling the design of a flexible self-propelled robot. We use this system to experimentally demonstrate that resonance greatly benefits pulse-jet swimming speed and efficiency, and the robot’s optimal cost of transport is found to match that of the most efficient biological swimmers in nature, such as the jellyfish Aurelia aurita. The robot also exhibits a preferred Stro...